Introductory Logic
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Introductory Logic – Complete Program


Logic is key to helping students excel in every subject they study, from math and science to rhetoric and humanities. This course will help students understand the fundamentals of thinking correctly.


Studying formal logic can be intimidating without the right help. In Introductory Logic, you’ll get the benefit of Brian Kohl’s years of teaching experience as he explains the fundamentals for correct thinking.

In the DVD and Student Book, students will learn:

  • How to define terms for maximum precision and accuracy — and thus win the debate
  • How to form and interpret statements, the building blocks of logical thought
  • How to compose valid syllogisms and expose invalid ones using counterexamples
  • How to analyze arguments in normal English
  • How to identify and deflect informal fallacies (one of the most instantly applicable parts of logic)
    (See list of lessons for a complete breakdown of classes)

The Teacher’s Guide provides everything you will need to make teaching logic as easy as possible:

  • A daily lesson schedule for completing Introductory Logic in a semester or a year-long course
  • Answers to all exercises, review questions, review exercises, quizzes, and tests in the order they are taught.
  • Contains the entire Student Edition text – no more flipping back and forth between answer keys and textbook
  • Detailed daily lesson plans

The Test & Quiz Packet contains a blank copy of every quiz or test that one student would need for the entire Introductory It even contains an alternative version of each test for practice — the best thing for unit review! Answers to all quizzes and tests are in the Teacher Edition.

Click here to download the errata sheet for Introductory Logic.

DVD EDITION: 5th (2019)
DVD Featured Instructor: Brian Kohl

License: This product is licensed for use by one family.

Additional information




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1 HS Logic

Credit Amount




Author: James Nance, Video Instructor: Brian Kohl


DVD, Teacher Book, Student Book, Test Packet

Addl Mtls

Student Book, Teacher Guide, Test & Quiz Packet

Sample Lessons

Read a Sample From the Student Book

Read a Sample From the Teacher Book



Can I use the 4th edition Introductory Logic textbooks (the green and blue books) with the new Introductory Logic DVD course?
Yes. The order and content of the individual chapters remains the same, so the books are still compatible.

The only difference is with the Introductory Logic Test Book: In the Introductory Logic DVD course, Brian Kohl works through a practice test for each unit, and those blank practice tests are not included in the current edition of the Introductory Logic Test Book (of course, you can still follow along as he works through the test on the DVD).


  1. The Purposes and Types of Definitions
  2. Genus and Species
  3. Extension and Intension
  4. Methods of Defining
  5. Rules for Defining by Genus and Difference
  6. Statements
  7. Self-Supporting Statements
  8. Supported Statements
  9. Relationships between Statements
  10. Consistency and Disagreement
  11. The One Basic Verb
  12. Standard Categorical Statements
  13. The Square of Opposition
  14. Contradiction
  15. Contrariety
  16. Subcontrariety
  17. Subimplication
  18. Superimplication
  19. Arguments
  20. The Syllogism
  21. The Mood of Syllogisms
  22. The Figure of Syllogisms
  23. Truth and Validity
  24. Testing Syllogisms by Counterexample
  25. Distributed Terms
  26. Testing Syllogisms by Rules
  27. Immediate Inferences
  28. Translating Ordinary Statements
  29. Translating Inclusive and Exclusive Statements
  30. Enthymemes
  31. Hypothetical Syllogisms
  32. EstablishingConclusions
  33. Fallacies of Distraction
  34. Fallacies of Ambiguity
  35. Fallacies of Form
  36. Detecting Fallacies


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